Repair DAMAGED Hydraulic Cylinder for CAT 651 Scraper | Part 1
This video is Part 1 of repairing a damaged hydraulic cylinder for a Caterpillar 651 Scraper wheel tractor. This is the Apron lift cylinder on the machine and has been damaged by something causing massive amounts of scratching inside the barrel and on the piston. In this part 1 video we start with the old cylinder barrel and set up in our lathe for machining out the welds to remove the barrel end and head flange. We use welding on the head flange and heat with flame torch to expand and remove. The head flange needs to be bored out, built up with weld and then machined out to suit the new barrel tube. We then set up the new steel tube in the lathe for machining the outer diameter and boring out the inner diameter to match OEM standard and interference fit for head flange. We then measure and drill in oil port holes into the new barrel and heat up with flame torch ready for interference fitting the head flange.
In this video we are using:
- TM-26120G Lathe
- BM-63VE Milling machine
- WIA 500i
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